Thaum cov pas nrig hlau tau muab tso rau hauv qab ntawm lub lauj kaub galvanized, ib txheej ntawm cov khoom siv xuab zeb condensed yog pom hauv qab. Yog tias cov ntaub ntawv no raug tshem tawm siv cov dregs skimmer, cov khoom grey zoo li cov taum liab muab tshuaj txhuam tuaj yeem pom, uas feem ntau hu ua zinc dross.
82. Zinc slag yog dab tsi?
Mar 16, 2026
Xa kev nug
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